Electromagnetic heating assembly and electromagnetic heating equipment

Abstract

The invention provides an electromagnetic heating assembly and electromagnetic heating equipment, the electromagnetic heating assembly is provided with a working surface, and the electromagnetic heating assembly comprises a first electromagnetic heating coil, a second electromagnetic heating coil and a third electromagnetic heating coil, the second electromagnetic heating coil is in a second direction in which the wires are stacked, and the second direction faces the working surface; wherein the included angle between the first direction and the second direction is smaller than 180 degrees.

Description

Technical Field

[0001] The present invention relates to the technical field of heating, and in particular, to an electromagnetic heating component and an electromagnetic heating device. Background Art

[0002] Electromagnetic heating has become a relatively mature heating technology at the present stage, and it is widely applied to electromagnetic heating devices such as induction cookers.

[0003] Among them, the working principle of electromagnetic heating is as Figure 1 shown. Specifically, an alternating current passes through a wire coil to generate a changing magnetic field. The changing magnetic field continuously cuts a ferromagnetic cookware, causing eddy currents to be generated in the cookware, such as eddy current I 流 . When the eddy current I 流 flows through a cookware with an internal resistance R, Joule heat Q is generated, Q = I 流 2 Rt, where T is time. Under the action of this Joule heat Q, the cookware quickly heats up, thereby realizing heating of food.

[0004] As Figure 2 and Figure 3 shown, the electromagnetic heating coil is located under a panel, such as a glass-ceramic panel or a mica porcelain panel. When the electromagnetic heating coil is energized, the magnetic lines of force generated by the N pole are emitted towards the panel. After penetrating the cookware placed on the panel, they return to the S pole when the heating coil is energized again.

[0005] However, the above solutions have the following defects:

[0006] As Figure 4 shown, the cookware needs to be placed on the panel and the distance between the cookware and the panel should be within a limited distance. However, the action of stir-frying and tossing the pan will cause the distance between the cookware and the panel to exceed the limited distance, resulting in the electromagnetic heating coil stopping working and affecting the user experience.

[0007] Meanwhile, as Figure 5 shown, the S pole when the heating coil is energized faces away from the cookware, which will heat metal products in this direction and is prone to fire.

[0008] As Figure 6 and Figure 7 shown, in the related technical solutions, a magnetic strip 106' is provided below the bracket 104', and the magnetic strip 106' is used to enhance the magnetic field. At the same time, magnetic line compensation is performed on the S pole when the coil 102' is energized, thereby reducing the heating effect on metal products in this direction. Summary of the Invention

[0009] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0010] To this end, the first aspect of the present invention lies in providing an electromagnetic heating component.

[0011] The second aspect of the present invention lies in providing an electromagnetic heating device.

[0012] In view of this, according to the first aspect of the present invention, there is provided an electromagnetic heating component having a working surface, the electromagnetic heating component comprising: a first electromagnetic heating coil, the first electromagnetic heating coil having a first direction in the direction of wire lamination; a second electromagnetic heating coil, the second electromagnetic heating coil having a second direction in the direction of wire lamination, the second direction facing the working surface; wherein the angle between the first direction and the second direction is less than 180°.

[0013] The present invention proposes an electromagnetic heating component. In this electromagnetic heating component, the direction of wire lamination of the second electromagnetic heating coil faces the working surface, so that the side of the second electromagnetic heating coil close to the working surface is the N pole, and the magnetic lines of force generated pass through the working surface and then act on the utensil, causing eddy currents in the utensil and thus achieving heating.

[0014] The angle between the direction of wire lamination of the provided first electromagnetic heating coil and the direction of wire lamination of the second electromagnetic heating coil is less than 180°, that is, the angle between the first direction and the second direction is less than 180°. During this process, the first electromagnetic heating coil and the second electromagnetic heating coil are in a non-parallel state, so that when the side of the first electromagnetic heating coil close to the second electromagnetic heating coil is the N pole, it interacts with the N pole and S pole of the second electromagnetic heating coil.

[0015] Specifically, when the side of the first electromagnetic heating coil close to the second electromagnetic heating coil is the N pole, it repels the N pole of the second electromagnetic heating coil, causing the magnetic lines of force emitted from the side of the first electromagnetic heating coil facing the working surface to rise upward in the direction of the magnetic lines of force generated by the N pole of the second electromagnetic heating coil. At the same time, when the side of the first electromagnetic heating coil close to the second electromagnetic heating coil is the S pole, it can form a closed curve with the upward magnetic lines of force of the N pole of the second electromagnetic heating coil. Compared with the related technical solutions, it can increase the upward distance of the magnetic lines of force, increase the magnetic field strength while increasing the coverage area of the magnetic field, so as to achieve electromagnetic heating even when the utensil is far from the working surface.

[0016] At the same time, when the side of the first electromagnetic heating coil close to the second electromagnetic heating coil is the N pole, it attracts the S pole of the second electromagnetic heating coil, enabling the magnetic lines of force emitted from the N pole of the first electromagnetic heating coil to quickly return to the S pole of the second electromagnetic heating coil, thereby forming a closed curve.

[0017] During this process, the electromagnetic leakage during the operation of the electromagnetic heating component can be reduced, and the heating effect on the metal product located at the bottom of the electromagnetic heating component can be reduced, thereby reducing the probability of fire and improving the safety of the electromagnetic heating component.

[0018] In some technical solutions, the working surface can be understood as a plane for placing utensils, such as a panel.

[0019] In some technical solutions, the stacking direction of the wires of the first electromagnetic heating coil can be understood as that, along the axial direction of the winding of the first electromagnetic heating coil, the stacking direction of the wires of the second electromagnetic heating coil is defined in the same way as that of the first electromagnetic heating coil, and no further elaboration will be made here.

[0020] In some technical solutions, the stacking direction of the wires of the first electromagnetic heating coil can be understood as the direction from the S pole to the N pole of the first electromagnetic heating coil. Similarly, the stacking direction of the wires of the second electromagnetic heating coil is defined in the same way as that of the first electromagnetic heating coil, and no further elaboration will be made here.

[0021] In addition, the electromagnetic heating component proposed in this application also has the following additional technical features.

[0022] In some technical solutions, optionally, the electromagnetic heating component further includes: a bracket, the bracket has a mounting surface, and the mounting surface is disposed opposite to the working surface; the first electromagnetic heating coil and the second electromagnetic heating coil are disposed on the mounting surface.

[0023] In this technical solution, by providing the bracket, the bracket can be used to provide support for the first electromagnetic heating coil and the second electromagnetic heating coil to achieve fixation and assembly, so as to reduce the influence of the misalignment of the first electromagnetic heating coil and the second electromagnetic heating coil on the heating effect of the electromagnetic heating component.

[0024] In some technical solutions, optionally, the bracket further includes: a mounting cavity, the first electromagnetic heating coil and the second electromagnetic heating coil are located in the mounting cavity; a hole, and the hole communicates with the mounting cavity.

[0025] In this technical solution, by providing the mounting cavity, the mounting cavity can be used to accommodate the first electromagnetic heating coil and the second electromagnetic heating coil, so as to reduce the probability of damage to the first electromagnetic heating coil and the second electromagnetic heating coil due to exposure, thereby improving the use safety of the first electromagnetic heating coil and the second electromagnetic heating coil.

[0026] In addition, by disposing the first electromagnetic heating coil and the second electromagnetic heating coil in the mounting cavity, the compactness among the bracket, the first electromagnetic heating coil and the second electromagnetic heating coil can be improved.

[0027] In some technical solutions, an installation groove is provided in the installation cavity, and the second electromagnetic heating coil is located in the installation groove.

[0028] In this technical solution, by providing the installation groove, the second electromagnetic heating coil can be fixed by using the installation groove, so as to improve the stability of the second electromagnetic heating coil.

[0029] In the above technical solution, by providing holes, the hollow design of the bracket is realized by using the provided holes, thereby reducing the amount of materials used for the bracket, and thus reducing the manufacturing cost of the electromagnetic heating component.

[0030] In addition, by providing holes, heat dissipation can be achieved by using the holes, so as to improve the stability of the operation of the electromagnetic heating component. At the same time, it is also convenient to fix the first electromagnetic heating coil.

[0031] In some technical solutions, the shape of the holes can be set according to the shape of the bracket and the shapes of the first electromagnetic heating coil and the second electromagnetic heating coil. The specific shape will not be elaborated here.

[0032] In some technical solutions, optionally, the number of holes is multiple, and there is a gap between different holes.

[0033] In some technical solutions, optionally, the holes include: at least one first hole, at least one first hole communicates with the installation cavity and is disposed opposite to the second electromagnetic heating coil; and / or at least one pair of second holes, at least one pair of second holes communicates with the installation cavity, and the first electromagnetic heating coil is wound around the bracket through the second holes.

[0034] In the above technical solution, since the provided first hole is disposed opposite to the second electromagnetic heating coil, therefore, it can cause the heat generated by the second electromagnetic heating coil during operation to conduct convection at the position where the first hole is located, thereby achieving heat dissipation.

[0035] In the above technical solution, by providing a pair of second holes, the wire can be wound through the pair of second holes, and then the first electromagnetic heating coil is formed.

[0036] During this process, while the second hole facilitates heat dissipation of the first electromagnetic heating coil, it also facilitates the purpose of fixing the first electromagnetic heating coil, thereby improving the firmness of the assembly of the electromagnetic heating component and reducing the possibility of the working efficiency of the electromagnetic heating component being reduced due to the first electromagnetic heating coil deviating from its original position.

[0037] In some technical solutions, optionally, the first electromagnetic heating coil includes at least two first coils, and the at least two first coils are distributed at intervals along the circumferential direction of the second electromagnetic heating coil; wherein, one end of each first coil is close to the second electromagnetic heating coil, and the other end of each first coil is far from the second electromagnetic heating coil.

[0038] In this technical solution, the arrangement directions of the first electromagnetic heating coil and the second electromagnetic heating coil are defined. In this process, the number of first coils can be selected according to actual design requirements, and then the corresponding electromagnetic heating assembly can be assembled.

[0039] In the above technical solution, by setting at least two first coils, so as to use the multiple first coils in cooperation with the second electromagnetic heating coil, thereby increasing the heating power of the electromagnetic heating assembly. At the same time, the upward distance of the magnetic force lines is also increased, the magnetic field intensity is increased, and the coverage range of the magnetic field is increased, so as to realize electromagnetic heating even when the vessel is far from the working surface.

[0040] In some technical solutions, the number of first coils can be two, three, four, or more, and the specific number will not be elaborated here.

[0041] In some technical solutions, the number of first coils is two. At this time, the two first coils are symmetrically arranged with the second electromagnetic heating coil as the center.

[0042] In some technical solutions, optionally, the first electromagnetic heating coil includes at least two first coils, and the second electromagnetic heating coil includes at least two second coils, wherein the at least two first coils and the at least two second coils are distributed in a ring-shaped and staggered manner.

[0043] In this technical solution, by defining that the first electromagnetic heating coil and the second electromagnetic heating coil each include at least two coils, so that the at least two first coils and the at least two second coils are distributed in a ring-shaped and staggered manner.

[0044] Among them, in the ring-shaped and staggered distribution, the first coil and the second coil are sorted in sequence to form a ring.

[0045] In this process, the ring-shaped distribution method can form a circular heating surface, and then adapt to the shape of the vessel, so as to ensure the heating effect.

[0046] In some technical solutions, optionally, the first electromagnetic heating coil is one of a spiral coil and a concentric circle coil; and / or the second electromagnetic heating coil is one of a spiral coil and a concentric circle coil.

[0047] In this technical solution, by defining the first electromagnetic heating coil and the second electromagnetic heating coil as spiral coils or concentric circle coils, the magnetic field intensity of the electromagnetic heating component is increased by increasing the number of coils, thereby increasing the heating power.

[0048] In some technical solutions, optionally, it further includes: a magnetic member, disposed on one side of the bracket and on the side far from the working surface.

[0049] In this technical solution, by providing the magnetic member, the magnetic field intensity of the first electromagnetic heating coil and the second electromagnetic heating coil is increased by using the magnetic member. At the same time, the magnetic member is also used to absorb the leaked magnetic lines, thereby reducing the magnetic leakage amount, so as to improve the safety of the electromagnetic heating component.

[0050] In some technical solutions, optionally, it further includes: a shielding layer, disposed on one side of the magnetic member and on the side far from the working surface.

[0051] In this technical solution, the provided shielding layer is used to shield the leaked magnetic lines, thereby reducing the magnetic leakage amount, so as to improve the safety of the electromagnetic heating component.

[0052] In some technical solutions, the shielding layer is an aluminum film.

[0053] According to the second aspect of the present invention, the present invention provides an electromagnetic heating device, including: the electromagnetic heating component as described in any one of the above.

[0054] In some technical solutions, optionally, the working surface in the electromagnetic heating component is a panel.

[0055] In some technical solutions, optionally, the electromagnetic heating device includes one of the following: an induction cooker, an electric stove, a rice cooker, and an electric pressure cooker.

[0056] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0058] Figure 1 Shows one of the schematic diagrams of the principle of electromagnetic heating in the related technical solutions;

[0059] Figure 2 Shows another schematic diagram of the principle of electromagnetic heating in the related technical solutions;

[0060] Figure 3 Shows a third schematic diagram of the principle of electromagnetic heating in the related technical solutions;

[0061] Figure 4 Shows the fourth schematic diagram of the principle of electromagnetic heating in the related technical solution;

[0062] Figure 5 Shows the fifth schematic diagram of the principle of electromagnetic heating in the related technical solution;

[0063] Figure 6 Shows the structural schematic diagram of electromagnetic heating in the related technical solution;

[0064] Figure 7 Shows the overall machine schematic diagram of electromagnetic heating in the related technical solution;

[0065] Figure 8 Shows the schematic diagram of the right - hand screw rule in the embodiment of the present invention;

[0066] Figure 9 Shows the schematic diagram of the working principle of the N - pole and S - pole when the electromagnetic heating coil is energized in the embodiment of the present invention;

[0067] Figure 10 Shows the front - view schematic diagram of the electromagnetic heating component in the embodiment of the present invention;

[0068] Figure 11 Shows the back - view schematic diagram of the electromagnetic heating component in the embodiment of the present invention;

[0069] Figure 12 Shows the first structural schematic diagram of the electromagnetic heating component in the embodiment of the present invention;

[0070] Figure 13 Shows the second structural schematic diagram of the electromagnetic heating component in the embodiment of the present invention;

[0071] Figure 14 Shows the schematic diagram of the magnetic field distribution of the electromagnetic heating component in the embodiment of the present invention;

[0072] Figure 15 Shows the distribution schematic diagram of the first electromagnetic heating coil and the second electromagnetic heating coil in the embodiment of the present invention;

[0073] Figure 16 Shows the schematic diagram of the magnetic - force line distribution of the first electromagnetic heating coil and the second electromagnetic heating coil in the embodiment of the present invention;

[0074] Figure 17 Shows the schematic diagram of the magnetic - force line distribution of the first electromagnetic heating coil and the second electromagnetic heating coil when setting up a vessel in the embodiment of the present invention;

[0075] Figure 18 Shows the first distribution schematic diagram of the first coil and the second electromagnetic heating coil in the embodiment of the present invention;

[0076] Figure 19 Shows the second schematic diagram of the distribution of the first coil and the second electromagnetic heating coil in the embodiment of the present invention;

[0077] Figure 20 Shows the third schematic diagram of the distribution of the first coil and the second electromagnetic heating coil in the embodiment of the present invention;

[0078] Figure 21 Shows the second schematic diagram of the distribution of the first coil and the second electromagnetic heating coil in the embodiment of the present invention;

[0079] Figure 22 Shows the first schematic diagram of the distribution of the first coil and the second coil in the embodiment of the present invention;

[0080] Figure 23 Shows the second schematic diagram of the distribution of the first coil and the second coil in the embodiment of the present invention;

[0081] Figure 24 Shows the schematic diagram of the first coil in the embodiment of the present invention;

[0082] Figure 25 Shows the schematic diagram of the second coil in the embodiment of the present invention;

[0083] Figure 26 Shows the third schematic diagram of the distribution of the first coil and the second coil in the embodiment of the present invention;

[0084] Figure 27 Shows the fourth schematic diagram of the distribution of the first coil and the second coil in the embodiment of the present invention;

[0085] Figure 28 Shows the fifth schematic diagram of the distribution of the first coil and the second coil in the embodiment of the present invention;

[0086] Figure 29 Shows the sixth schematic diagram of the distribution of the first coil and the second coil in the embodiment of the present invention;

[0087] Figure 30 Shows the layout schematic diagram of the first electromagnetic heating coil and the second electromagnetic heating coil in the embodiment of the present invention;

[0088] Figure 31 Shows the third structural schematic diagram of the electromagnetic heating component in the embodiment of the present invention;

[0089] Figure 32 Shows the first magnetic field intensity distribution diagram of the electromagnetic heating component in the embodiment of the present invention;

[0090] Figure 33 Shows the second magnetic field intensity distribution diagram of the electromagnetic heating component in the embodiment of the present invention.

[0091] Among them, Figure 6 The corresponding relationship between the reference numerals in the drawings and the component names is as follows:

[0092] 102' coil, 104' bracket, 106' magnetic strip.

[0093] Among them, Figures 10 to 31 The corresponding relationship between the reference numerals in the drawings and the component names is as follows:

[0094] 100 working surface, 102 first electromagnetic heating coil, 104 second electromagnetic heating coil, 106 bracket, 1062 mounting surface, 1064 mounting cavity, 1066 hole, 1068 first hole, 1070 second hole, 1022 first coil, 1042 second coil, 108 magnetic member, 110 shielding layer. Detailed implementation manners

[0095] In order to be able to more clearly understand the above aspects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0096] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0097] Among them, Figure 8 and Figure 9 show the working principles of the N pole and the S pole when the electromagnetic heating coil is energized.

[0098] Specifically, the energized coil will generate a magnetic field, and the direction of the magnetic field conforms to the right-hand screw rule as Figure 7 shown, that is, the magnetic force lines start from the north pole N of the coil and return to the south pole S of the coil, forming a closed curved path.

[0099] In one embodiment of the present application, as Figure 10 , Figure 11 , Figure 12 and Figure 13 shown, there is provided an electromagnetic heating assembly. The electromagnetic heating assembly has a working surface 100. The electromagnetic heating assembly includes: a first electromagnetic heating coil 102, and the first electromagnetic heating coil 102 is in the first direction in the direction of wire lamination; a second electromagnetic heating coil 104, and the second electromagnetic heating coil 104 is in the second direction in the direction of wire lamination, and the second direction faces the working surface 100; wherein, the included angle between the first direction and the second direction is less than 180°.

[0100] The present invention provides an electromagnetic heating component. In this electromagnetic heating component, the direction of lamination of the wire of the second electromagnetic heating coil 104 faces the working surface 100, so that the side of the second electromagnetic heating coil 104 close to the working surface 100 is the N pole, and the magnetic lines of force generated pass through the working surface 100 and then act on the utensil, causing eddy currents in the utensil and thus achieving heating.

[0101] The included angle between the direction of lamination of the wire of the provided first electromagnetic heating coil 102 and the direction of lamination of the wire of the second electromagnetic heating coil 104 is less than 180°, that is, the included angle between the first direction and the second direction is less than 180°. During this process, the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 are in a non-parallel state, so that when the side of the first electromagnetic heating coil 102 close to the second electromagnetic heating coil 104 is the N pole, it interacts with the N pole and S pole of the second electromagnetic heating coil 104.

[0102] Specifically, as Figure 14 shown in the schematic diagram of the magnetic field formed after the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 are energized, the magnetic lines of force on the upper sides of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 rise significantly, and the magnetic lines of force on the lower sides of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 are significantly inhibited.

[0103] In some embodiments, the direction of lamination of the wire of the first electromagnetic heating coil 102 can be understood as that in the axial direction around which the first electromagnetic heating coil 102 is wound, the direction of lamination of the wire of the second electromagnetic heating coil 104 is defined in the same way as that of the wire of the first electromagnetic heating coil 102, and details will not be elaborated here.

[0104] In some embodiments, as Figure 15 shown, the second electromagnetic heating coil 104 is vertically arranged and the first electromagnetic heating coil 102 is horizontally arranged. At this time, among the magnetic lines of force of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104, the magnetic lines of force facing the upper side rise, and the magnetic lines of force facing the lower side are inhibited.

[0105] Among them, the measurement results of the distance between the utensil and the panel are shown in Table 1.

[0106] Table 1

[0107]

[0108] Specifically, as Figure 16As shown, when the side of the first electromagnetic heating coil 102 close to the second electromagnetic heating coil 104 is the N pole, it repels the N pole of the second electromagnetic heating coil 104, causing the magnetic lines of force emitted from the side of the first electromagnetic heating coil 102 facing the working surface 100 to rise upward in the direction of the magnetic lines of force generated by the N pole of the second electromagnetic heating coil 104. At the same time, when the side of the first electromagnetic heating coil 102 close to the second electromagnetic heating coil 104 is the S pole, it can form a closed curve with the upward magnetic lines of force of the N pole of the second electromagnetic heating coil 104. Compared with the related embodiments, it can increase the upward distance of the magnetic lines of force, increase the magnetic field strength while increasing the coverage area of the magnetic field, so as to achieve electromagnetic heating even when the vessel is far from the working surface 100.

[0109] At the same time, when the side of the first electromagnetic heating coil 102 close to the second electromagnetic heating coil 104 is the N pole, it attracts the S pole of the second electromagnetic heating coil 104, enabling the magnetic lines of force emitted by the N pole of the first electromagnetic heating coil 102 to quickly return to the S pole of the second electromagnetic heating coil 104, thereby forming a closed curve.

[0110] During this process, it is possible to reduce the electromagnetic leakage during the operation of the electromagnetic heating component while reducing the heating effect on the metal products at the bottom of the electromagnetic heating component, thereby reducing the probability of fire and improving the safety of the electromagnetic heating component. Based on this, when a vessel is placed on the above-mentioned electromagnetic heating component, the distribution of its magnetic lines of force is as Figure 17 shown.

[0111] In some embodiments, the working surface 100 can be understood as a plane for placing vessels, such as a panel.

[0112] In some embodiments, the direction in which the wire of the first electromagnetic heating coil 102 is laminated can be understood as the direction from the S pole to the N pole of the first electromagnetic heating coil 102. Similarly, the direction in which the wire of the second electromagnetic heating coil 104 is laminated is defined in the same way as that of the first electromagnetic heating coil 102, and will not be elaborated here.

[0113] In some embodiments, optionally, as Figure 10 shown, the electromagnetic heating component further includes: a bracket 106, the bracket 106 has a mounting surface 1062, and the mounting surface 1062 is disposed opposite to the working surface 100; the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 are disposed on the mounting surface 1062.

[0114] In this embodiment, by providing the bracket 106, the bracket 106 is used to support the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 to achieve fixation and assembly, so as to reduce the influence of the misalignment of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 on the heating effect of the electromagnetic heating assembly.

[0115] In some embodiments, optionally, as Figure 11 and Figure 13 shown, the bracket 106 further includes: an installation cavity 1064, the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 are located in the installation cavity 1064; a hole 1066, and the hole 1066 communicates with the installation cavity 1064.

[0116] In this embodiment, by providing the installation cavity 1064, the installation cavity 1064 is used to accommodate the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104, so as to reduce the probability of damage to the first electromagnetic heating coil 102 and the second electromagnetic heating coil being exposed, thereby improving the use safety of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104.

[0117] In addition, by arranging the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 in the installation cavity 1064, the compactness among the bracket 106, the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 can be improved.

[0118] In some embodiments, an installation groove is provided in the installation cavity 1064, and the second electromagnetic heating coil 104 is located in the installation groove.

[0119] In this embodiment, by providing the installation groove, the installation groove is used to fix the second electromagnetic heating coil 104, so as to improve the stability of the second electromagnetic heating coil 104.

[0120] In the above embodiment, by providing the hole 1066, the hollow design of the bracket 106 is realized by using the provided hole 1066, thereby reducing the amount of materials used for the bracket 106, and thus reducing the manufacturing cost of the electromagnetic heating assembly.

[0121] In addition, by providing the hole 1066, the hole 1066 is used to achieve heat dissipation, so as to improve the stability of the operation of the electromagnetic heating assembly. At the same time, it is also convenient to fix the first electromagnetic heating coil 102.

[0122] In some embodiments, the shape of the hole 1066 can be set according to the shape of the bracket 106 and the shapes of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104, and its specific shape will not be elaborated here.

[0123] In some embodiments, optionally, the number of holes is multiple, and there is a gap between different holes.

[0124] In some embodiments, optionally, as Figure 11 shown, the holes include: at least one first hole 1068, at least one first hole 1068 communicates with the installation cavity 1064 and is disposed opposite to the second electromagnetic heating coil 104; and / or at least one pair of second holes 1070, at least one pair of second holes 1070 communicates with the installation cavity 1064, and the first electromagnetic heating coil 102 is wound around the bracket 106 through the second holes 1070.

[0125] In the above embodiment, since the provided first hole 1068 is disposed opposite to the second electromagnetic heating coil 104, therefore, it can cause the heat generated by the second electromagnetic heating coil 104 during operation to convect at the position where the first hole 1068 is located, thereby achieving heat dissipation.

[0126] In the above embodiment, by providing a pair of second holes 1070, it is possible to wind the wire through the pair of second holes 1070, and then form the first electromagnetic heating coil 102.

[0127] During this process, the second hole 1070 facilitates heat dissipation of the first electromagnetic heating coil 102 while also serving to fix the first electromagnetic heating coil 102, thereby enhancing the firmness of the assembly of the electromagnetic heating component and reducing the possibility of the working efficiency of the electromagnetic heating component being reduced due to the first electromagnetic heating coil 102 departing from its original position.

[0128] In some embodiments, optionally, the first electromagnetic heating coil 102 includes at least two first coils 1022, and the at least two first coils 1022 are spaced apart along the circumferential direction of the second electromagnetic heating coil 104; wherein, one end of each first coil 1022 is close to the second electromagnetic heating coil 104, and the other end of each first coil 1022 is far from the second electromagnetic heating coil 104.

[0129] In this embodiment, the arrangement directions of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 are defined. During this process, the number of the first coils 1022 can be selected according to actual design requirements, and then the corresponding electromagnetic heating component can be assembled.

[0130] In the above embodiments, by providing at least two first coils 1022, multiple first coils 1022 are used in cooperation with the second electromagnetic heating coil 104, thereby increasing the heating power of the electromagnetic heating assembly. At the same time, the upward distance of the magnetic lines of force is also increased, the magnetic field strength is increased, and the coverage range of the magnetic field is increased, so as to achieve electromagnetic heating even when the vessel is far from the working surface 100.

[0131] In some embodiments, the number of the first coils 1022 may be two, three, four, or more, and the specific number will not be elaborated herein.

[0132] In some embodiments, the number of the first coils 1022 is two. At this time, the two first coils 1022 are symmetrically arranged with the second electromagnetic heating coil 104 as the center.

[0133] In some embodiments, the number of the first coils 1022 is three. Specifically, their distribution positions are as Figure 18 and Figure 19 shown.

[0134] In some embodiments, the number of the first coils 1022 is four. Specifically, their distribution positions are as Figure 20 and Figure 21 shown.

[0135] In some embodiments, optionally, the first electromagnetic heating coil 102 includes at least two first coils 1022, and the second electromagnetic heating coil 104 includes at least two second coils 1042, wherein at least two first coils 1022 and at least two second coils 1042 are distributed in a ring-shaped and staggered manner.

[0136] In this embodiment, by defining that the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 each include at least two coils, at least two first coils 1022 and at least two second coils 1042 are distributed in a ring-shaped and staggered manner.

[0137] Among them, in the ring-shaped and staggered distribution, the first coils 1022 and the second coils 1042 are sorted in sequence to form a ring.

[0138] Specifically, as Figure 22 , Figure 23 , Figure 24 , Figure 25 shown. In this process, the distribution method of the ring-shaped distribution can form a circular heating surface, thereby adapting to the shape of the vessel and ensuring the heating effect.

[0139] Specifically, as Figure 32 and Figure 33 shown, Figure 33 is a schematic diagram of the magnetic field strength towards the working surface 100.Figure 32 It is a schematic diagram of the magnetic field intensity facing away from the working surface 100. The magnetic field intensity facing the working surface 100 is significantly stronger than that facing away from the working surface 100.

[0140] In some embodiments, optionally, the first electromagnetic heating coil 102 is one of a spiral coil and a concentric circle coil; and / or the second electromagnetic heating coil 104 is one of a spiral coil and a concentric circle coil.

[0141] Exemplarily, such as Figure 26 、 Figure 27 、 Figure 28 、 Figure 29 shown.

[0142] Specifically, as Figure 30 shown, the longitudinally arranged electromagnetic heating coils and the horizontally arranged electromagnetic heating coils are alternately arranged in sequence, and they can be grouped in fours. Then, two first coils 1022 and two second coils 1042 are selected, so as to obtain the structure as Figures 22 to 29 shown.

[0143] In this embodiment, by defining the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 as spiral coils or concentric circle coils, the magnetic field intensity of the electromagnetic heating component is increased by increasing the number of coils, and then the heating power is increased.

[0144] In some embodiments, optionally, as Figure 31 shown, it further includes: a magnetic member 108, which is arranged on one side of the bracket 106 and on the side far from the working surface 100.

[0145] In this embodiment, by arranging the magnetic member 108, the magnetic field intensity of the first electromagnetic heating coil 102 and the second electromagnetic heating coil 104 is increased by using the magnetic member 108. At the same time, the magnetic member 108 is also used to absorb the leaked magnetic lines, thereby reducing the magnetic leakage amount, so as to improve the safety of the electromagnetic heating component.

[0146] In some embodiments, optionally, it further includes: a shielding layer 110, which is arranged on one side of the magnetic member 108 and on the side far from the working surface 100.

[0147] In this embodiment, the arranged shielding layer 110 is used to shield the leaked magnetic lines, thereby reducing the magnetic leakage amount, so as to improve the safety of the electromagnetic heating component.

[0148] In some embodiments, the shielding layer 110 is an aluminum film.

[0149] In one of the embodiments, the present invention provides an electromagnetic heating device, including: an electromagnetic heating component as described in any one of the above.

[0150] In some embodiments, optionally, the working surface 100 in the electromagnetic heating assembly is a panel.

[0151] In some embodiments, optionally, the electromagnetic heating device includes one of the following: an induction cooker, an electric stove, a rice cooker, and an electric pressure cooker.

[0152] The terms "first", "second" in the description and claims of this application may explicitly or implicitly include one or more of such features. In the written description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects. The character " / ", generally represents an "or" relationship between the associated objects before and after.

[0153] In the claims, description, and drawings of the present invention, the term "a plurality" means two or more, unless otherwise explicitly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. It is only for more convenient description of the present invention and to simplify the description process, rather than to indicate or imply that the device or element referred to must have the specific orientation, be constructed and operated in the specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; terms such as "connected", "installed", "fixed", etc. should all be understood in a broad sense. For example, "connected" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0154] In the claims, description, and drawings of the present invention, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, description, and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0155] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic heating component, characterized in that, The electromagnetic heating assembly has a working surface, and the electromagnetic heating assembly includes: A first electromagnetic heating coil, where the lamination direction of the wires of the first electromagnetic heating coil is the first direction; A second electromagnetic heating coil, where the lamination direction of the wires of the second electromagnetic heating coil is the second direction, and the second direction faces the working surface; Wherein, the included angle between the first direction and the second direction is less than 180°.

2. The electromagnetic heating component according to claim 1, wherein The electromagnetic heating assembly further includes: A bracket, which has a mounting surface, and the mounting surface is disposed opposite to the working surface; The first electromagnetic heating coil and the second electromagnetic heating coil are arranged on the mounting surface.

3. The electromagnetic heating component according to claim 2, wherein The bracket further includes: A mounting cavity, where the first electromagnetic heating coil and the second electromagnetic heating coil are located in the mounting cavity; A hole, and the hole communicates with the mounting cavity.

4. The electromagnetic heating component according to claim 3, characterized in that, The hole includes: At least one first hole, at least one of the first holes communicates with the mounting cavity and is disposed opposite to the second electromagnetic heating coil; and / or At least one pair of second holes, at least one pair of the second holes communicates with the mounting cavity, and the first electromagnetic heating coil is wound around the bracket through the second holes.

5. The electromagnetic heating component according to any one of claims 1 to 4, characterized in that The first electromagnetic heating coil includes at least two first coils, and at least two of the first coils are spaced apart along the circumferential direction of the second electromagnetic heating coil; Wherein, one end of each first coil is close to the second electromagnetic heating coil, and the other end of each first coil is far from the second electromagnetic heating coil.

6. The electromagnetic heating component according to any one of claims 1 to 4, characterized in that, The first electromagnetic heating coil includes at least two first coils, and the second electromagnetic heating coil includes at least two second coils, Wherein, at least two of the first coils and at least two of the second coils are distributed in a ring-shaped staggered manner.

7. The electromagnetic heating component according to any one of claims 1 to 4, characterized in that, The first electromagnetic heating coil is one of a spiral coil and a concentric circle coil; and / or The second electromagnetic heating coil is one of a spiral coil and a concentric circle coil.

8. The electromagnetic heating component according to any one of claims 2 to 4, characterized in that, It further includes: A magnetic member, which is disposed on one side of the bracket and on the side far from the working surface.

9. The electromagnetic heating component according to claim 8, characterized in that It further includes: A shielding layer, which is disposed on one side of the magnetic member and on the side far from the working surface.

10. An electromagnetic heating device, characterized in that, It includes: The electromagnetic heating assembly according to any one of claims 1 to 9.

11. The electromagnetic heating device according to claim 10, characterized in that, The working surface in the electromagnetic heating assembly is a panel.

12. The electromagnetic heating device according to claim 10 or 11, characterized in that, The electromagnetic heating device includes one of the following: An induction cooker, an electric stove, a rice cooker, and an electric pressure cooker.

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